20123020301 has 4 divisors (see below), whose sum is σ = 20138417952. Its totient is φ = 20107622652.

The previous prime is 20123020283. The next prime is 20123020339. The reversal of 20123020301 is 10302032102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10302032102 = 2 ⋅5151016051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123020301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123020381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7696865 + ... + 7699478.

It is an arithmetic number, because the mean of its divisors is an integer number (5034604488).

Almost surely, 2^20123020301 is an apocalyptic number.

It is an amenable number.

20123020301 is a deficient number, since it is larger than the sum of its proper divisors (15397651).

20123020301 is a wasteful number, since it uses less digits than its factorization.

20123020301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397650.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20123020301 its reverse (10302032102), we get a palindrome (30425052403).

It can be divided in two parts, 20 and 123020301, that added together give a palindrome (123020321).

The spelling of 20123020301 in words is "twenty billion, one hundred twenty-three million, twenty thousand, three hundred one".